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3 // Copyright (C) 2009-2019 Free Software Foundation, Inc.
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
16 // Under Section 7 of GPL version 3, you are granted additional
17 // permissions described in the GCC Runtime Library Exception, version
18 // 3.1, as published by the Free Software Foundation.
20 // You should have received a copy of the GNU General Public License along
21 // with this library; see the file COPYING3. If not see
22 // <http://www.gnu.org/licenses/>.
24 /** @file profile/impl/profiler_state.h
25 * @brief Global profiler state.
28 // Written by Lixia Liu and Silvius Rus.
30 #ifndef _GLIBCXX_PROFILE_PROFILER_STATE_H
31 #define _GLIBCXX_PROFILE_PROFILER_STATE_H 1
33 namespace __gnu_profile
35 enum __state_type
{ __ON
, __OFF
, __INVALID
};
37 _GLIBCXX_PROFILE_DEFINE_DATA(__state_type
, __state
, __INVALID
);
40 __turn(__state_type __s
)
42 __state_type
inv(__INVALID
);
43 return __atomic_compare_exchange_n(&_GLIBCXX_PROFILE_DATA(__state
),
44 &inv
, __s
, false, __ATOMIC_ACQ_REL
,
50 { return __turn(__ON
); }
54 { return __turn(__OFF
); }
58 { return _GLIBCXX_PROFILE_DATA(__state
) == __ON
; }
62 { return _GLIBCXX_PROFILE_DATA(__state
) == __OFF
; }
66 { return _GLIBCXX_PROFILE_DATA(__state
) == __INVALID
; }
68 } // end namespace __gnu_profile
69 #endif /* _GLIBCXX_PROFILE_PROFILER_STATE_H */